Erik: not to be contrary -- but I'm not sure that the extra studs in a tire like the Extreme would help you much on this sheet. Don't most of the extra studs (compared, say, to the hakkapallita) stick out the sides of the knobbies?

I took this pic and made my "easier to ride" statement before the ice flow that was on the next section of trail (shown here with snow a few years ago).

For the first section, I just sat down, held onto my bike and slid on my bum down to the flat. For the second section, I walked through the deep snow. Then rode, just barely, the final section.

Fun stuff. Imagine how terrifying it would be to drive in this stuff? Those drivers are nuts! No fewer than two strangers told me to "be careful" this morning as I rode by them. I know that comes from a place of good intention, but it annoys me nonetheless.